Gas generator and burner



Feb. 27, 1923. 1,446,889

H. L. EDRIDGE V GAS GENERATOR AND BURNER Filed Jan 25, 1922 5sheetssheetl I Feb.27,1923. 1,446,889 H. L. EDRIDGE GAS GENERATOR AND BURNER FiledJan. 25, 1922 5 sheets-sheet 2 Feb. 27, 1923. 1,446,889 H. L. EDRIDGEGAS GENERATOR AND BURNER Filed Jan. 25, 1922 5 sheets-sheet 5 jiii/4550777?) %Wd@,7@%

Patented Feb. 27, 1923.

UNtT I y HARTWELL L. nnnrnen, or MINNEAPOLIS, "MINNESOTA.

ens GENERATOR Ann BURNER. t v i 5 Application filed January 23, 1922.Serial no. 531,651.

T all 10 700m it may concern:

Be it known that I, IIARTWELL L. Enninen,

a citizen of the United States, residing at li'linne-apolls, in thecounty of Hennepin and State of Minnesota, have invented certain,

new and useful Improvements in Gas Generators and Burners; and I dohereby declare the following to be a full, clear,'and exact.-

description of the invention, such 'as will enable others skilled in theart to which it appertains to make and use the same;

My invention has for its object to pro- 1 vide'a simple and highlyefiicient gas genen ator and burner adaptedfor theburning of heavyhydro-carbon, such as kerosene, distillate and crude oil, and to suchends,"generally stated, the invention consistsof the novel devices andcombinations of devices hereinafter described and defined in the claims.In one commercial form, com-l bined generator and burner-1s appl ed to,,

supported by and removable with one'of the v lids of a range, cooklngstove or other stove having one or more lids, but thegeneral I 26construction illustrated is capable of a' wide range of use and may; forillustration, be

also used in ordinary heating stoves and furnaces or boilers. Intheaccompanying drawings, which illustrates the lnvention, like charactersinviews.

Referring to the drawlngsz ,Fig. 1 is a View partly in side elevationand partly in vertical section'illustrating the invention as applied toone of the lids of an ordinary range or cooking stove;

Fi 2'is a transverse vertical sectio'ntaken.

and the numeral 8 one of the removable lids,

I which latter is of special design, being preferably. constructed'asfollows: Said lid is provided with an upstanding marginal flange 9, justinward of said flange wlth an annular channel "10, just inward of saidchannel with an upstanding annularvaporizing chamber 11, and, at itsaxis or center,

pivoted hand piece 20.

dicate like parts throughoutv the several passage. Between the centralpassage 12 and vaporizingchambe'r 11,;the 'li'd 8 is formed withcircumferentially spaced, air ports13. c I

- Mountedon'the flangeof the neck or central. passage 12 is anoscillatory valve 14; of the dampertype, but which is providedwith" acentral passage 15 that always remains open, regardless of adjustmentsof, said. valve or dampen, J i. p

The hydroarhon [liquid will be supplied to the vaporizing chamberllthrough a sup Extending radially inward from the vaporizing chamber 11is a vapor"deliveryipipe 17 that terminates inja depen'ding'vapordischarge nozzle 18-located' immediately over the central passage 15.This nozzlelidis .ar-, ranged to bevopened and closedto de- The numeral2lindicate's a hood thatch with a flanged neck 12 that affords a centralI plypipe 16 that leads-froma source of sup ply such as an "elevatedtank not shown.

siredextent by a needle valve19, the stem v of which projects upwardand, as shown, is

provided at its upper end with a centrally y tirely covers thelid and ispreferably formed from sheet metal having a depending 1na-r-' ginalflange 22, the lower edge of which is detachably seat-ed .in an annularchannel formed on the upper edgeof the' lid flange 9. Near its lowerend, the hoodflange 22 is provided with small eircumferentially spacedair intake ports23. At one side,

said flange 22 has a notch 24 that adapts the lidto be set over thehorizontal portionotf' the'fuel supply pipe '16, At its center, the

hood 21 has an axialpassagethrough which the stemof the needle valvel9is passed.

When the hand piece 20 is turned" into alignmentwith the valve 19,thehood21 be removed from or applied to the stem of said needle valve."Surrounding its central a pointfthe hood 211 is formed withlargeauxiliary air intake ports 25 thatiarei-tdapt ed to be opened and closedto any desired extent by'an oscillatory damper or valve :26,

Secured to and depending fro n the lid and aligned with. the neck orcentral passage lil thereof'is'a perforated conical shell 27, andsecuredtQsaid lid and'depending therefrom is an imperforate cylindricalouter shell 28, the lower edgejofwhichis united'to the lower edgetof theconical shell 27; The numeral 29 "indicates an .air tube that is securedto the lower edges of the shells 27 and 28 and is extended diametricallythereof and, at its outer end, has upturned extensions 30 that openthrough the sides of the shell28 at diametrically opposite points. Atits central portion, the tube 29 has a short upwardly extended stack 31located on the axis of the conical shell 27.

The numeral 32 indicates a perforated inner conical shell locatedconcentric to and within the shell 27 but spaced therefrom, and from theupper end of the stack 31. The apex of this inner shell 32 is alignedwith and located just below the constantly open central passage 15. Thelower end or base of said conical shell 32 is closed by a dislelikeplate 33.

The operation of this combined generator and burner is substantially asfollows:

To start the burner into action, a smallv amount of gasoline will beplaced in the annular channel 10 of the lid and is ignited.

. The gasoline can be readily placed in said channel 10 when the hood 21is slightly raised, or it might be squirted into said channel from anoil can through one of the ports 23. The initial heat produced by theburning of this gasoline will convert the hydro-can bon fuel containedwithin the vaporizing chamber 11 into gas or vapor form, and when thevalve 19 is open, thed ischarge of gas or vapor from the nozzle 18,under the action of the constant downward draft from the stove, will bethrough the passage 15 into the space between the perforated shells 27and 32. The draft from the stove will draw air through the ports 23 and25 into the hood and from thence downward through the air ports 18 andalso through the openings of the valve 14 if. in fact, the latter beopen, Part of the'hydro-carbon vapor primarily drawn into the spacebetween the perforated shells 27 and 32 will be drawn outward throughthe shell 27, part thereof will enter the inner shell. 32.- and partthereof will'be drawn directly downward through the two nearsemi-circular openings formed on opposite sides of the tube 29 at thelower extremities of said shells 27 and 32. Part of the air drawn intothe space between the shells 27 and 28 will be drawn into the annularspace between said shells 27 and 32 and will be immediately comniingledwith the hydro-carbon vapor, but a considerable part of the air will. bedrawn through the tubfiS .0, 29 and 31 into the interior of the innerperforated shell. 32, where it will be cominingled with more or lessvapor or gas and from whence it will be drawn with the vapor into thespace between the shells 27 and 32 and discharge downward at the bottomopenings formed between said shells. Thus, it will be seen that inseveral different ways, he hydrorarbw apor and a r are commingled" and,hence, will be burned in the most efiicient possible manner, within thefire box of the stove. Of course, as soon as the generation of thehydro-carbon vapor in the chamber 11 is once established, the heatconducted through the metallic parts to the lid and to the metal wallsof said chamber 11 will be sufficient to maintain such vaporization orgeneration of the hydro-carbon gas or vapor.

The intensity of the flame may be regulated by varying the adjustmentsof the needle valve 19 to give the proper supply of hydro-carbon vapor,but different adjustments of said needle valve will require varryingregulation of the air supply and this may be taken care of byadjustments of the damper-acting valves 26 and 14.

In actual practice, the efficiency of this gas generator and burner hasbeen thoroughly demonstrated. Not only is the device highly efficient,but it may be produced at small manufacturing cost. When applied to thelid of a stove, it may be quickly and easily removed, if at any time itshould be necessary or desirable to use vwood or coal in the stove.

What I claim is:

1. A gas generator and burner compr sing a supporting plate having airports, inner and outer perforated conical'shells supported below saidplate, a nozzle above, said plate arranged for the delivery of'fluidfuel into the space between said conical shells,

a shell surrounding said perforated shells, and an air duct extendingfrom the side of" said latter noted shell into the interior of saidinner perforated conical shell.

2. A gas generator and burner comprising a supporting plate having airports, inner 4:. The structure defined. in claim 2 in open and withdamper-controlled auxiliary air intake ports.

7. The structure controlled air passage between said nozzle and theupper extremities of said perforated I conical shells.

8. The structure defined in claim in which said plate inward of saidhood is pro 'vided with an annular channel adapted to receive a startingcharge of gasoline or the like. i 9. The structure defined in claim 5 inwhich. said nozzle has a valve, thesteln o-f' defined in claim' 5 inwhich said plate 1s provided W1th-" a damperi said lid constituting asel able structure;

1-1. The structure defined in c-1aimj5'in a:

"of a stove 'lid the entire device including" I a said lid constitutinga self contained'PortffiZo which saidsupporting plate is in the form Iof a stove. lid, the entire deviceincluding" able structure.

f-contained port- 525

